Value Collection 204280 Hex Head Cap Screw 5/8-11 Grade 316

Product Description

The VALUE COLLECTION 204280 is a partially threaded hex head cap screw designed for fastening applications that demand corrosion resistance and mechanical strength. Built to inch-series dimensions with a 5/8-11 UNC thread size and a 2-1/4 inch length under head, this fastener is manufactured from Grade 316 stainless steel with a bright, uncoated finish. The partially threaded shank provides a smooth bearing surface in the grip zone, making it well suited for joints where shear load distribution matters. Electricians, plumbers, HVAC technicians, and general tradespeople use fasteners like this when assembling corrosion-prone equipment, pipe supports, brackets, or enclosures in wet or chemically active environments.

This fastener is appropriate for indoor and outdoor installations where exposure to moisture, salt, or mild chemicals is a concern. Grade 316 stainless steel offers improved chloride resistance compared to Grade 304, making it a common choice in coastal installations, pool mechanical rooms, and marine-adjacent environments. The UNC thread form is standard in North American trade applications, and the 5/8-11 size is frequently encountered in structural brackets, equipment bases, and heavy mechanical assemblies.

Key Features

• Grade 316 stainless steel construction for superior corrosion and chloride resistance
• 5/8-11 UNC thread form matches standard inch-series fastener specifications
• Partially threaded shank provides a smooth grip zone for improved shear performance
• Bright, uncoated finish with no added plating or coating that could affect dimensional tolerance
• 2-1/4 inch length under head suits medium-depth fastening applications

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 5/8-11 UNC tapped hole or nut in applications requiring Grade 316 stainless steel fasteners.

Installation Notes

Install using a standard 15/16 inch hex wrench or socket driver appropriate for a 5/8 inch fastener. Ensure mating threads are clean and free of debris before installation. When installing stainless steel fasteners, apply an anti-seize compound to reduce the risk of galling, which is common with austenitic stainless alloys. Follow applicable mechanical codes and equipment manufacturer guidelines for torque requirements specific to your assembly.